CN206239601U - Earplug filters fuse and earplug - Google Patents
Earplug filters fuse and earplug Download PDFInfo
- Publication number
- CN206239601U CN206239601U CN201620791516.7U CN201620791516U CN206239601U CN 206239601 U CN206239601 U CN 206239601U CN 201620791516 U CN201620791516 U CN 201620791516U CN 206239601 U CN206239601 U CN 206239601U
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- chamber
- earplug
- fixed cover
- high frequency
- dust guard
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Abstract
The utility model is related to earplug field, and a kind of earplug filtering fuse and earplug are provided, earplug filtering fuse includes lid, dust guard, fixed cover and High frequency filter part, low frequency filtering part, chamber is provided with lid, dust guard is arranged on the opening end of chamber, fixed cover is sleeved on outside dust guard, the upper end of fixed cover is cased with High frequency filter part, dust guard is provided with low frequency filtering part near the opening end of chamber, lid is provided with sound mouth, dust guard is provided with into sound mouthful, High frequency filter part is made up of silica gel material, sender is provided with High frequency filter part, fixed cover is stepped cylinder body, fixed cover is internally provided with chamber, wall holding section is provided with chamber, wall holding section radially extends toward chamber interior, fixed cover top is provided with part holding section, part holding section footpath convex.By rational structure design, from suitable material, the exchange between while the effective attenuation of noise to external world is reached also not influenceing user is applied widely for the utility model.
Description
Technical field
The utility model is related to earplug field, filters fuse more particularly, to a kind of earplug and is equipped with the noise control of the fuse
Sound earplug.
Background technology
High frequency noise is often produced during industrial production, oil exploitation, air transportation, drilling well exploitation etc., for a long time upper
To state work under environment and can cause the Hearing of worker, therefore worker needs to take healthy safeguard measure.And it is modern all
In city, the noise of the generation such as elevator, central air conditioner main machine, traffic in building is generally low frequency noise, though low frequency noise is without height
Frequency noise substantially, but is more than harm of the high frequency noise to human body to the long-range harm that human body is produced.Low frequency noise can make us body friendship
Sense is nervous, and blood pressure is raised, and long-term low frequency noise of receiving influences then easily to cause neurasthenia, headache etc., most common protection
Measure is to allow worker to wear ear plug.
But, because the earplug body of existing ear plug is made up of materials such as silica gel completely, although can be by the external world
Noise deaden, but also useful voice signal is deadened simultaneously, the speech sound signal of particularly people is also deadened, and people
Speech sound signal is concentrated mainly on middle low-frequency range, therefore, user is difficult to hear extraneous speech after wearing ear plug
Voice signal, is also difficult to smoothly be linked up with other people, it is necessary to have to extract earplug when being linked up with other people.
The content of the invention
Main purpose of the present utility model is to provide a kind of effectively weakening high frequency injurious noise, low frequency injurious noise and reservation
The earplug filtering fuse of middle low frequency sound signals.
Another object of the present utility model is to provide a kind of speech sound signal that can hear that the external world is useful after wearing
Earplug.
To realize above-mentioned main purpose, the earplug filtering fuse that the utility model is provided includes lid, dust guard, fixation
Set, High frequency filter part, low frequency filtering part, are provided with chamber in lid, dust guard, High frequency filter part and fixation are equipped with chamber
Set, fixed cover top is equipped with High frequency filter part, and fixed cover fit beneath has dust guard, and dust guard lower section is provided with low frequency filtering
Part, lid is provided with sound mouth, and dust guard is provided with into sound mouthful, and High frequency filter part is made up of silica gel material, and High frequency filter part is opened
There is sender, fixed cover is stepped cylinder body, and fixed cover is internally provided with chamber, wall holding section, wall card are provided with chamber
Conjunction portion radially extends toward the chamber interior, and fixed cover top is provided with part holding section, part holding section footpath convex.
Further scheme is that High frequency filter part includes piece portion and wall portion, and wall portion is set around piece portion, and sender is opened in piece
Portion.
Further scheme is that dust guard includes dust excluding plate and enters sound wall, enters sound wall and is arranged on dust guard top, enters sound wall
Formed into sound mouthful.
Further scheme is, low frequency filtering part is by netted and be made up of nylon material.
Further scheme is that lid is provided with sound mouth, and fixture is provided with chamber, and fixture is arranged on the high frequency
Filtering part top.
From such scheme, the low frequency noise in extraneous acoustical signal first passes around the weakening of low frequency filtering part, then
Be handed in chamber from sound oral instructions are entered, after through High frequency filter part using the poor characteristic of high frequency sound wave diffracting power by extraneous sound
The energy of the high frequency sound wave in signal significantly declines weakening.Finally, low frequency noise is significantly weakened with high frequency noise and retains and spread out
The acoustical signal for penetrating the stronger middle low-frequency sound wave of ability spreads out of from the sound mouth of lid and enters human antrum auris.
As can be seen here, harmful high frequency noise and low frequency noise are significantly weakened by earplug filtering fuse, and are in middle low frequency
Sound wave then almost have no damply to enter human antrum auris, so as to make user avoid receiving high frequency sound wave and low-frequency sound wave
Extraneous useful sound can be also heard simultaneously.
In order to realize above-mentioned another object, the earplug that the utility model is provided includes earplug body, is set in earplug body
There is earplug to filter fuse, earplug filtering fuse includes lid, dust guard, fixed cover and High frequency filter part, low frequency filtering part, lid
Chamber is provided with vivo, dust guard is arranged on the opening end of chamber, and fixed cover is sleeved on outside dust guard, and the upper end of fixed cover is cased with height
Frequency filtering part, dust guard is provided with low frequency filtering part near the opening end of chamber, and lid is provided with sound mouth, and dust guard is provided with
Enter sound mouthful, High frequency filter part is made up of silica gel material, sender be provided with High frequency filter part, fixed cover is stepped cylinder body,
Fixed cover is internally provided with chamber, and wall holding section is provided with chamber, and wall holding section radially extends toward chamber interior, fixed cover top
Portion is provided with part holding section, part holding section footpath convex.
From such scheme, low frequency filtering part is significantly weakened to low-frequency sound wave, and high frequency sound wave is due to its diffraction
Ability it is poor and after through chamber energy attenuation substantially, and middle low-frequency sound wave then easily propagate through chamber and by sound mouth enter
In human antrum auris, and energy attenuation is not obvious, and after wearing ear plug, user can still hear extraneous useful middle all-bottom sound
Message number, but low frequency noise and high frequency noise be then weakened.
Brief description of the drawings
Fig. 1 is the longitudinal sectional view that the utility model earplug filters fuse embodiment.
Fig. 2 is the longitudinal sectional view that the utility model earplug filters fuse embodiment lid.
Fig. 3 is the top view that the utility model earplug filters fuse embodiment lid.
Fig. 4 is the structure chart that the utility model earplug filters fuse embodiment High frequency filter part.
Fig. 5 is the longitudinal sectional view that the utility model earplug filters fuse embodiment High frequency filter part.
Fig. 6 is the structure chart that the utility model earplug filters fuse embodiment fixed cover.
Fig. 7 is the longitudinal sectional view that the utility model earplug filters fuse embodiment fixed cover.
Fig. 8 is the structure chart that the utility model earplug filters fuse embodiment dust guard.
Fig. 9 is the structure chart that the utility model earplug filters fuse embodiment fixture.
Figure 10 is the longitudinal sectional view that the utility model earplug filters fuse embodiment fixture.
Figure 11 is the Structure explosion diagram that the utility model earplug filters fuse embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Specific embodiment
Referring to Fig. 1 and Figure 11, left and right directions is for laterally, above-below direction is longitudinal direction, the earplug filtering of the utility model offer
Fuse 2 includes lid 21, fixture 22, High frequency filter part 23, fixed cover 24, dust guard 25 and low frequency filtering part 2 from top to bottom.
Referring to Fig. 2 and Fig. 3, lid 21 includes multiple sound mouths 27, chamber 28, lid portion 30, the opening end 45 of chamber 28
With stage portion 46, the internal diameter of opening end 45 is bigger than the internal diameter of stage portion 46, the upper end of the internal diameter than chamber 28 at stage portion end 46
47 internal diameter is big.It is bigger than the internal diameter of stage portion 46 by the way that the internal diameter of opening end 45 is set to, make to form First in chamber 28
Rank, so as to first step can coordinate with by fixed cover with cylindrical portion 48, cylindrical portion 49 when making fixed cover 24 be assemblied in chamber 28
24 precalculated positions being smoothly positioned in chamber 28.It is bigger than the internal diameter of upper end 47 by the way that the internal diameter of stage portion 46 is set to, from
And precalculated position in chamber 28 can be smoothly positioned at when making fixture 22 be assemblied in chamber 28.Will in the present embodiment, go out sound
Mouthfuls 27 quantity is from 5 and is arranged in lid portion 30, the shape of sound mouth 27 is from circular, wherein 4 sound mouths 27 weeks
To being evenly arranged, 1 sound mouth 27 is located at the center of lid portion 30, and the profile in lid portion 30 selects cylinder, lid portion 30
Top surface selects smooth fillet transition with the transition position of side, and opening end 45, stage portion 46 are circle with the cross section of upper end 47.
Referring to Fig. 4 and Fig. 5, High frequency filter part 23 includes piece portion 35, wall portion 29 and sender 36, and High frequency filter part 23 is selected
Silica gel material is made.In the present embodiment, from circle, the thickness in piece portion 35 elects 0.03 millimeter, wall portion as to the profile in piece portion 35
29 set around piece portion 35 and piece portion 35 are arranged on the bottom of wall portion 29, and the quantity of sender 36 elects 6 as and selects circular hole
It is the shape of sender, sender 36 is evenly arranged in the circumferential direction in piece portion 35, the diameter of sender elects 0.03 millimeter as,
Sender 36 is uniformly arranged in piece portion 35.On the one hand be made using silica gel material due to High frequency filter part 23, on the other hand by
The required precision of the smaller radius equidimension with sender 36 of thickness in piece portion 35 is higher, so sender 36 passes through cold laser
Processing method and be made to ensure that the location dimension of sender 36 and the dimensional accuracy of form dimension are satisfied by requiring.Due to high frequency
The making material for filtering part 23 is silica gel, therefore wall portion 29 possesses corresponding deformability.So as to be assemblied in fixation when wall portion 29
When on set 24, part holding section 38 applies active force to the inner side of wall portion 29 so that wall portion 29 is deformed upon, and then makes the wall portion 29 can be with
The part holding section 38 of fixed cover 21 forms to inlay to coordinate to be fixed on fixed cover 21 with by High frequency filter part 23.
Referring to Fig. 6 and Fig. 7, fixed cover 24 includes housing 32, chamber 37, part holding section 38 and wall holding section 39, part engaging
Portion 38 at the top of housing 32 with radial direction toward evagination, wall holding section 39 in chamber 37 and part holding section 38 lower section with
Radial direction extends toward chamber 37.In the present embodiment, the profile of fixed cover 24 selects stepped circle, the outside of housing 32 from
Under be provided with cylindrical portion 48, cylindrical portion 49 and cylindrical portion 50 on direction up, the external diameter of cylindrical portion 48 is more than cylindrical portion 49
External diameter, the external diameter of the external diameter more than cylindrical portion 50 of cylindrical portion 49, part holding section 38 is arranged on the top of cylindrical portion 50.Part holding section
The inner side of the 38 pairs of wall portions 29 applies active forces so that wall portion 29 is deformed upon, and then makes the wall portion 29 can be with the part holding section of fixed cover 24
38 formation are inlayed to coordinate and are fixed on fixed cover 24 with by High frequency filter part 23.When in the insertion chamber 37 of dust guard 25, wall card
Conjunction portion 39 can contact with sound wall 42 is entered, and the external diameter of holding section 41 is bigger than the internal diameter of wall holding section 39, therefore wall holding section 39 can lead to
Cross and engage so as to being formed with holding section 42 with entering sound wall 42 and contact, and then dust guard 25 is fixed in chamber 37.
Referring to Fig. 8, dust guard 25 includes dust excluding plate 33, enters sound wall 42.In the present embodiment, dust excluding plate 33 selects cylinder
Body, the quantity for entering sound wall 42 is elected 2 as and is oppositely arranged, and 2 spaces entered between sound wall 34 are formed into sound mouthful 40.Holding section 41
It is located at into the top of sound wall 34 and with radial direction toward evagination, when in the insertion chamber 37 of dust guard 25, wall holding section 39 can be with
Enter sound wall 42 to contact, the external diameter of holding section 41 is bigger than the internal diameter of wall holding section 39, thus wall holding section 39 can by with enter sound wall
42 contacts engage so as to be formed with holding section 42, and then dust guard 25 is fixed in chamber 37.
Referring to Fig. 9 and Figure 10, fixture 22 includes housing 31, housing 44 and enters sound mouthful 43.In the present embodiment, fixture
From cylinder.The internal diameter of housing 31 is smaller than the internal diameter of housing 44, is provided with into sound mouthful 43 at the top of fixture 22.By inciting somebody to action
The internal diameter of stage portion 46 is set to bigger than the internal diameter of upper end 47, second step is formed in chamber 28 so as to make, and then make fixture
22 are assemblied in housing 31 when in chamber 28 can coordinate with smoothly by making a reservation for that fixture 22 is positioned in chamber 28 with second step
Position.
Referring to Figure 11, the shape of earplug body 3 can determine according to different use environments, in the present embodiment, earplug body 3
Oriented duct is set and extends projection, earplug body 3 is in close contact with lid portion 30, earplug filtering fuse 2 is placed in earplug body 3
Interior, the bottom of dust guard 25 is provided with low frequency filtering part 26, and low frequency filtering part 26 is netted structure and uses nylon material system
Into.Low frequency filtering part 26 can significantly weaken the low frequency noise in extraneous acoustical signal, so as to make into the outer of earplug filtering fuse 2
It is diffracting power stronger middle low-frequency range sound wave and the weaker high frequency sound wave of diffracting power in boundary's acoustical signal.
The dust and other impurities that dust excluding plate 33 can be fallen the external world by the network structure of low frequency filtering part 26 are filtered from earplug
Ripple fuse 2 is isolated, so as to ensure the clean and tidy of the earplug filtering internal environment of fuse 2, it is to avoid filter effect is affected.It is simultaneously dust-proof
Plate 33 can first be weakened using the high frequency sound wave in the weaker characteristic of high frequency sound wave diffracting power to external world acoustical signal, high frequency
Extraneous acoustical signal of the sound wave after weakening first enters sound mouthful 40.Due to entering the face of the area less than sender 36 of sound mouthful 40
Product, therefore high-frequency noise can significantly be weakened by using high frequency sound wave diffracting power relatively low characteristic.
The fixed cover 24 that fixture 22 then will be equipped with High frequency filter part 23, dust guard 25 and low frequency filtering part 26 is fixed on
In the chamber 28 of lid 21, while by making the internal diameter of housing 31 smaller than the internal diameter of housing 44, so as to spread out using high frequency sound wave
The relatively low characteristic of ability is penetrated to weaken high frequency noise again.
So as to make through the low frequency noise and high frequency noise in the extraneous acoustical signal after High frequency filter part 23 and fixture 22
Significantly weakened, and then ensured that the extraneous acoustical signal from sound mouth 27 through and into human antrum auris is harmless.
So, after wearing earplug, extraneous voice signal can be conducted to earplug filtering fuse 2, the earplug filtering energy of fuse 2
Effectively high frequency noise and low frequency noise are weakened, and useful middle low-frequency sound wave is sent in human antrum auris.Wear earplug
Afterwards, user can still hear extraneous useful middle low frequency sound signals, and blocking will not be produced to feel, and the voice signal in the external world enters
After entering duct, it is avoided that duct external and internal pressure is uneven, so as to avoid user from producing the phenomenons such as fatigue, dizziness.
Certainly, above-described embodiment is only the preferred embodiment of the present invention, and during practical application, the present invention also has more
Change, for example, the shape of dust excluding plate can select polygon；Lid portion outside can be machined with other identification pattern shape such as spiral shells
Streakline etc. is identified with the function to earplug filtering fuse；Lid shape can be from cylinder or rectangle；The thickness in piece portion
Other sizes can be selected；The quantity of sender can select other numerical value, and these changes can equally realize the utility model
Purpose.
Finally it is emphasized that the utility model is not limited to above-mentioned implementation method, the utility model is the foregoing is only
Preferred embodiment, be not used to limit the utility model, it is all within spirit of the present utility model and principle, made
Any modification, equivalent substitution and improvements etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of earplug filters fuse, including
Lid, dust guard, fixed cover and High frequency filter part, low frequency filtering part；
Chamber is provided with the lid, the dust guard is arranged on the opening end of the chamber, and the fixed cover is sleeved on described
Outside dust guard, the upper end of the fixed cover is cased with the High frequency filter part, and the dust guard sets near the opening end of the chamber
It is equipped with the low frequency filtering part；
It is characterized in that：
The lid is provided with sound mouth, and the dust guard is provided with into sound mouthful, and the High frequency filter part is made up of silica gel material,
Sender is provided with the High frequency filter part, the fixed cover is stepped cylinder body, and the fixed cover is internally provided with chamber,
Wall holding section is provided with the chamber, the wall holding section radially extends to the chamber interior, the fixed cover top sets
It is equipped with part holding section, part holding section footpath convex.
2. earplug according to claim 1 filters fuse, it is characterised in that：
The High frequency filter part includes piece portion and wall portion, and the wall portion is set around described portion, and the sender is opened in described
Piece portion.
3. earplug according to claim 1 filters fuse, it is characterised in that：
The dust guard includes dust excluding plate and enters sound wall, it is described enter sound wall be arranged on the dust guard top, it is described enter sound wall shape
Cheng Jinyin mouthfuls.
4. earplug according to claim 1 filters fuse, it is characterised in that：
The low frequency filtering part is made by network structure and by nylon material.
5. the earplug according to any one of Claims 1-4 filters fuse, it is characterised in that：
Fixture is provided with the chamber, the fixture is arranged on the High frequency filter part top.
6. a kind of earplug, including
Earplug body；
It is characterized in that：
Be provided with earplug filtering fuse in the earplug body, earplug filtering fuse include lid, dust guard, fixed cover and
High frequency filter part, low frequency filtering part, are provided with chamber in lid, dust guard is arranged on the opening end of chamber, and fixed cover is sleeved on anti-
Outside dirt part, the upper end of fixed cover is cased with High frequency filter part, and dust guard is provided with low frequency filtering part, lid near the opening end of chamber
Sound mouth is provided with, dust guard is provided with into sound mouthful, and High frequency filter part is made up of silica gel material, and sound is provided with out on High frequency filter part
Hole, fixed cover is stepped cylinder body, and fixed cover is internally provided with chamber, wall holding section is provided with chamber, and wall holding section is past
Chamber interior is radially extended, and fixed cover top is provided with part holding section, part holding section footpath convex.
7. earplug according to claim 6, it is characterised in that：
The High frequency filter part includes piece portion and wall portion, and the wall portion is set around described portion, and the sender is opened in described
Piece portion.
8. earplug according to claim 7, it is characterised in that：
The dust guard includes dust excluding plate and enters sound wall, it is described enter sound wall be arranged on the dust guard top, it is described enter sound wall shape
Cheng Jinyin mouthfuls.
9. earplug according to claim 8, it is characterised in that：
The low frequency filtering part is by netted and be made up of nylon material.
10. the earplug according to any one of claim 6 to 9, it is characterised in that：
Fixture is provided with the chamber, the fixture is arranged on the High frequency filter part top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791516.7U CN206239601U (en) | 2016-07-25 | 2016-07-25 | Earplug filters fuse and earplug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791516.7U CN206239601U (en) | 2016-07-25 | 2016-07-25 | Earplug filters fuse and earplug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206239601U true CN206239601U (en) | 2017-06-13 |
Family
ID=58998632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620791516.7U Active CN206239601U (en) | 2016-07-25 | 2016-07-25 | Earplug filters fuse and earplug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206239601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684488A (en) * | 2017-09-30 | 2018-02-13 | 江阴思安塑胶防护科技有限公司 | Selecting type muffler and the noise reduction earplug for including it |
| WO2019061637A1 (en) * | 2017-09-30 | 2019-04-04 | 江阴思安塑胶防护科技有限公司 | Sound attenuation device and noise-cancelling earplug having same |
-
2016
- 2016-07-25 CN CN201620791516.7U patent/CN206239601U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684488A (en) * | 2017-09-30 | 2018-02-13 | 江阴思安塑胶防护科技有限公司 | Selecting type muffler and the noise reduction earplug for including it |
| WO2019061637A1 (en) * | 2017-09-30 | 2019-04-04 | 江阴思安塑胶防护科技有限公司 | Sound attenuation device and noise-cancelling earplug having same |
| CN107684488B (en) * | 2017-09-30 | 2023-08-25 | 江阴思安塑胶防护科技有限公司 | Selectable muffler and noise reduction earplug comprising same |
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